The TEXAS INSTRUMENTS LPC SPEECH CHIPS are a series of speech
synthesizer digital signal processor integrated circuits created by
Texas Instruments beginning in 1978. They continued to be developed
and marketed for many years, though the speech department moved around
several times within TI until finally dissolving in late 2001. The
rights to the speech-specific subset of the MSP line, the last
remaining line of TI speech products as of 2001, were sold to Sensory,
Inc. in October 2001.

The TMC0280/TMS5100 was the first self-contained LPC speech
synthesizer IC ever made. It was designed for
Texas Instruments by
Larry Brantingham, Paul S. Breedlove, Richard H. Wiggins, and Gene A.
Frantz and its silicon was laid out by Larry Brantingham. The chip
was designed for the 'Spelling Bee' project at TI , which later became
the Speak & Spell . A speech-less 'Spelling B' was released at the
same time as the Speak used on all non-super versions of the Speak &
Spell except for the 1980 UK version, which used the TMC0280/CD2801
below. Publicly sold as TMS5100. It was also used on the Byron Petite
Electronic Talking Typewriter toy. Superseded in 1979 by TMS5100A
and TMS5110.

1980

* TMC0280 AKA CD2801: Used in the
Speak & Math , Speak designed for
use by the TI consumer division for the
TI 99/4A speech module; also
used on the 4th generation Bally/Midway pinball tables' Squawk and
Talk speech board (part number AS-2518-61), on the Environmental
cabinet version of the Bally/Midway arcade game Discs of TRON , on
(earlier)
Apple IIApple IIEcho 2 cards, and on the
Zaccaria arcade games Jack
Rabbit and Money Money, and
Zaccaria pinball machines
PinballPinball Champ
and Soccer Kings. Superseded by TMS5220 in late 1980/1981, and
possibly sold as cheap, 'fire-sale' stock in 1982–1983. Uses the
'final' chirp table.
* CD2802: A version of the TMS5100/5110 with different LPC and Chirp
tables, not the same as either the TMS5100(A) or TMS5110(A). Used on
the Touch and Tell only, never sold outside of the company. Uses its
own, unique, chirp table.
* TMS5110A (after 1985: TSP5110A): Die shrink of TMS5110, pin and
function compatible. Used on at least two home computer products. It
was used on the arcade game Bagman by Valadon Automation, by Omnicron
Electronics on the TCC-14 Talking Clock/Calendar, and on the arcade
game
A.D. 2083 by Midcoin. Used on the Chrysler Electronic Voice Alert
vehicle monitoring system. Uses the 'final' chirp table.
* TMS5220 (AKA CD2805E?): Improved version of the TMS5200, pin but
not function compatible (has new LPC tables); used on (later) Apple II
Echo 2 cards, (rumor) on the very last run of
TI 99/4A speech modules,
on the
BBC MicroBBC Micro , in Bally/Midway 's NFL Football arcade game, and in
many
Atari, Inc. arcade games, including
Star WarsStar Wars , Firefox , Return
of the Jedi , Road Runner , The Empire Strikes Back . Later Atari
arcade games used the TMS5220C, see below. The TMS5220 was also used
in and
Zaccaria pinball machines Farfalla, Devil Riders, Time Machine,
Magic Castle, Robot, Clown, Pool Champion, Blackbelt, Mexico '86,
Zankor, and Spooky. The TMS5220 was also used on Venture Line's
Looping and Sky Bumper, Olympia 's Portraits, and
Exidy 's Victory and
Victor Banana arcade machines. Superseded by TMS5220C in 1983/1984.
Uses the 'final' chirp table. HP 82967A
Speech synthesis module,
adding 1500-word vocabulary to Series 80 computers.

1983

* TMS5220C (after 1985: TSP5220C): has the two NOP commands the
parallel FIFO interface reworked to control speech rate, added
external full reset; minor change apparent to the way energy values
affect unvoiced frames. Otherwise identical, pin-compatible, and a
drop-in replacement to the TMS5220. Used on the
AtariAtari arcade games
Indiana Jones and the Temple of Doom ,
720° , Gauntlet , Gauntlet II
, A.P.B. , Paperboy ,
RoadBlasters , Vindicators Part II, and finally
Escape from the Planet of the Robot Monsters . Also used on the IBM
PS/2PS/2 Speech Adapter and the Pacific Educational Systems RS-232 Speech
adapter. Manufactured into the early 1990s.

1985

* TSP50C50: CMOS, uses LPC-12 instead of LPC-10, uses TMS60C20
256Kb/32KiB serial ROM instead of
TMS6100 . Uses 'D6' LPC tables and
chirp tables, which were common for the whole TSP50Cxx series. Has
built in low-pass analog filter. Manufactured into the early 1990s.

1986

* TSP50C40 (later MSP50C40): TSP50C50 plus a simple 8-bit
microcontroller with on-chip mask ROM. Was used in a number of TI's
consumer division products. was named CM54129/CM54169 for the speak
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